Should surgical screws and plates be removed after break has healed?

It's entirely up to you and whether or not you have the plate removed depends on your circumstances. In most cases, it will do no harm either way, but if you participate in extreme sports that risk re-injury it's best to have them removed. Also, if you live in a cold country, the weather can cause discomfort in the plated area. It's harmless but irritating, so having the plate taken out is always a good idea. The length of time the plate is in also plays a part. The longer it's been in for after healing, the higher the risk of complications when removing it.